Let's divide 723587 by 23
The aim is to understand the frequency of 23 in 723587.

Step 1:
When dividing 7 by 23, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 23

Going ahead to step 2:
23 goes into 72 3 times with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 69 away from 72, we end up with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 23

Advancing to step 3:
23 can be fit into 33 1 times, resulting in a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
If we take 23 away from 33, we end up with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 23

Moving on to step 4:
23 can be fit into 105 4 times, resulting in a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 314.0
If we take 92 away from 105, we end up with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 23

On to step 5:
138 divided by 23 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 3146.0
If we subtract 138 from 138, we get 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 23

Let's proceed to step 6:
23 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 31460.0
If we take 0 away from 7, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
If we divide 70 by 23, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 31460.3
Subtracting 69 from 70 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
23 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 31460.3
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
100 divided by 23 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 31460.304
If we subtract 92 from 100, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
80 divided by 23 is 3 with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 31460.3043
Subtracting 69 from 80 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 11:
The number 23 fits into 110 4 times, leaving a remainder of 18.
The next digit of our result is 4. 
Result so far: 31460.30434
Subtract 92 from 110 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 12:
When dividing 180 by 23, we get 7 with a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 31460.304347
If we subtract 161 from 180, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
23 can be fit into 190 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 31460.3043478
If we take 184 away from 190, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 14:
If we divide 60 by 23, we get 2 and a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 31460.30434782
Deduct 46 from 60 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 31460.30434782 with a remaining 1.4e-08.